Mixer for gaseous fuel.



W. W. BERGOLD. MIXER FOR GASEOUS FUEL. APPLICATION FILED JAN.5,1912.

1,040,853. Patented Oct. 8, 1912.

, Jim/22227:

mrmryojd unrrnn s rn'rn s r rrnn r orrion.

WILBUR W. BERGOLD, OF. CANTON, OHIO, ASSIGNOR 0F ONE-HALF T0 31 M.BERGOLD, 0F CANTON, OHIO.

MIXER FOR GASEOUS FUEL.

Specification of Letters Patent.

Application filed January 5, 1912. Serial No. 669,530.

To all whom it may concern:

Be. it known that I, YILBUR \V. Benson), a citizen of the United States,residing at Canton. in the county of Stark and State of Ohio. haveinvented certain new and useful Improvements in Mixers for Gaseous ofwhich the following is a specification.

My mixers for carbureters, and is particularly designed and adapted foruse in connection with an ordinary carbureter at some convenient placebetween it and the intalce manifold of the engine for diffusing thegasolene spray or vapor asreceived from the spray nozzle and provide aperfect mixture, evenly blended and of the proper consistency.

'Gasolene, as it is sueked'out of the nozzle. made up as it is, ofhydrocarbonsof differing values. from the point of view of weight andvolatility will hold to the globular form with more or less tenacity,depending upon conditions. In any one carbureter the perfection ofvaporization is proportioned to the fineness with. which the liquid isbroken up at the nozzle. The shortness of the time within whichvaporization must be com pleted is what causes the above factor offineness of division to enter. Since the heat transfer between the airand the liquid, or the passage walls and the liquidis effected chieflythrough the agencies of convection and conduct1on-the former implying arapid agitation and relative motion between the particles of the twosubstances, and the latter the exposure by the liquid of the greatestpossible surface areas-it is readily seen that the finer the fueldivision at the nozzle the more rapid and complete will be thevaporization and the greater the homogeneity of the final mixture.

Those who have constructed transparent carbureti'ng chambers for theobservai'ice of nozzle action have ascertained that the/fuel left thenozzles as a solid stream or in heavy globules and irregular chunks, notas a fine'spray or mist, as it is supposed to do.

At low speeds the mixture should be richer than at high. T his is due tothe factthat at low speeds more heat is lost to the Fuel,

invention relates to improvements in cylinder walls, more compression islost by i leakage, and the combustion can therefore be slower, thussustaining the pressure. At high speeds the compression is higher, dueto less leakage and less loss of heat. Therefore, unless the mixture beleaner at high speed there might be danger of pre-ignition. A lean andhighly compressed charge also burns faster and hence gives betterpressures and fuel economy than a richer one.

To get the maximum power out of a given sized engine the fuel should beintroduced into the cylinder as cold as possible consistcut withcomplete evaporation, intimacy of mixture and completeness ofcombustion.

' It is the purpose of this mixer to provide for such completeevaporation and homogeneous diffusion of the combustible charge underthe varying demands of actual service, as above pointed out, by theprovision of means for evaporating and diffusing the gasolene spray asreceived from the spray nozzle so that a perfect gas mixture of evendensity at all speeds will be provided and delivered at the cylinders.

With the above mentioned and other ob jects in view, the inventionconsists in. the novel construction, arrangement, and combination ofparts, hereinafter described. illustrated in one of its embodiments inthe accompanying drawings and particularly pointed out in the appendedclaims.

Referring to the drawings forn'iing a part ofthis specification, Figure1, is a side elevation of the improved mixer as it appears applied foruse in connection with an ordinary carbureter of the Schebler type. Fig.2, an enlarged top plan view of thesaiue detached. Fig. 3, a bottom planview of the same. Fig. 4, an isometric view of the up= per rim memberfor cooperating with the lower rim member in securing the gaslie andgauze members in position. Fig! a similar View of the foraminous orgauze intercepting member and the stationary defleeting blades carriedabove the latter. Fig. 6, a similar view showing the gasket. mem beradapted to be interposed between the rim portion of the foraminousintercepting member and the lower rim member. Fig. 7, a similar view ofthe lower rim member.

Similar numerals of reference designate like parts throughout all thefigures of the drawings.

The improved mixer is adapted to intercept the combustible charge asreceived from the carburetor which may be of any suitable and convenienttype and may be conveniently located between and secured by the flangemembers 1, of the carbureter body asbestos washer or 2, and the chargeintake pipe 3, leading to the respective engine cylinders.

The improved mixer Comprises a foraminous interceptingmember 4,preferably of wire'gauze of disk-shape and provided with an offset rimportion, as shown.

As a convenient means for securing and supporting the interceptingmember as well as providing. a rim portion adapted to be interposed andsecured between the flange members 1, as shown in- Fig. 1, and explainedabove, upper and lower rim mem bers 5 and 6, are provided, together withan lower rim member 6, being provided about its inner periphery with anupwardly extending-flange 6, adapted to rest within the gasket member 7and within the offset rim portion of the gauze intercepting member, andthe upper rim member 5, is likewise provided with an angularly shapedflange 5,

adaptedto fit down upon and secure the rim portion of the gauze disk orintercepting member l, upon the gasket 7, and about the flange 6 of thelower member 6. As ,a means for intercepting and thoroughly mixing andcommingling the irregular combustible charges of gasolene and air asreceived from the carburetor as well as giving the same a gyratorymotion after passing through the gauze disk or intercepting member a, aplurality of stationary deflecting blades 8, are arranged above andsecured to the central intercepting member 4-, in any suitable andconvenient manner, as for example,a securing rivet 9, said deflectingblades being inclined upwardly and laterally in a similar relation toeach other as shown most clearly in Figs. 1 and 5 of the drawings.

As a means for the more ready passage of the combustible charge throughthe intercepting member 4, directly beneath the deflecting blades 8, andmore particularly as a means for the more ready passage of thecombustible charge and heavier globules of gasolene at low speed and lowsuction when the mixture should be richer than at high speed and yetthoroughly commingled as above-explained, aplurality or series ofopeningslO, are provided in the intercepting member 4, immediately.below the defleeting blades 8, so that streams passing through theopenings ,4, will strike against theinclined deflectingblades S, and bedeflected and given a gyratory motion by mechanical agitation therebyevaporating the gasolene and perfectly carbureting the j air into anabsolutely homogeneous combustile charge resulting in economy ofconsumption of the liquid hydrocarbon and gasket' member 7, said.

portion of the gauze maximum power at any given speed in accordance withthe immediate conditions of combustion.

It is believed .that the above construction offers a great advantageover that in which rotary fan wheels or blades are provided as mixersand in which the blades simply get out of the way of the passing mixtureinstead of evaporating and diffusing the gasolene spray into ahomogeneous combustible charge. Furthermore, such mixers are notprovided with means for taking care of the varying demands of actualservice .as at high and low speed, as above explained.

From the foregoing description, taken in connection with theaccompanying drawings, the operation and advantages .of my inventionwill be readily understood. Having thus described one of the embodimentsof my invention, what'I claim and desire to secure by Letters Patentis 1. A mixer for carbureters, comprising a gauze intercepting diskprovided with an offset rim portion, flanged rim members mounted aboveand below said offset rim portion of said gauze intercepting disk, andupwardly and laterally inclined stationary deflecting blades securedabove said intercepting disk.

tionary deflecting blades and having an flanged rim member mounted abovesaid gauze intercepting disk.

3. A mixer for carbureters, comprising a gauze intercepting memberprovided with openings, and' stationary deflecting blades carried bysaid intercepting member and extending above said, openings.

4:. A mixer forcarbureters, comprising a gauze intercepting diskprovided with a plurality of openings, and a plurality of inclinedstationary blades secured above said disk and extending above saidopenings.-

A'mixer for carbureters, comprising a gauze intercepting diskhaving aplurality of openings and adapted to be inserted in the outlet portionof the carbureter, and similarly inoiined radially extending stationarydeflector l blades secured above said openings and carried by said disk.

In testimony whereof I have affixed my signature in presence of twowitnesses.

WILBUR w. ransom).

2. A mixcr for carbureters, comprising a' gauze intercepting diskprovided with sta- I oflset rim portion, a rim and gasket membermountedbeneath said run portion, and av provided with a gasket-

